Magnetic head drive circuit including capacitors for storing charge to drive a magnetic head coil
US5448422A · kind A · utility
2Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A drive circuit apparatus for driving a magnetic head includes a magnetic core, a coil wound around the magnetic core, and a unit for supplying current to the coil. The supplying unit includes first and second capacitors and a charging unit such that the second capacitor is charged while the current is supplied to the coil by a charge stored in the first capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.